People found it particularly jarring to see somebody who is so relevant in pop-culture in a show that is so fantasy.
So, could you imagine somebody like Justin Bieber appearing on the show?!
Well... Sophie Turner (Sansa Stark) could, and she really fought for it to happen.
Speaking to ET, Sophie revealed how she accidentally let slip to Maisie Williams (Arya Stark) that Ed would be appearing on the show. "That was fun because Maisie loves Ed Sheeran, and [creators] David [Benioff] and Dan [Weiss] had it as, like, a surprise for her," she began.
"So they just, they were like, 'Oh, when's Ed Sheeran coming on the show?' They kind of did it as a surprise."
It then urged her on to reveal that her celeb cameo fave wasn't picked.
"I was kind of mad because I've been talking about [Justin] Bieber coming on the show for a while now. But it's fine, I'm over it."
With the backlash that Ed pulled, we think serious fans of the show would riot if Bieber made any appearance TBH.